RfR JDK-8055831 Open Source Java Access Bridge

[Pete Brunet]

Please review the following patch which will add the code of the Java
Access Bridge (JAB) and related Java Accessibility Utilities to OpenJDK.

This code is used by Assistive Technology such as screen readers and
screen magnifiers used by those who are blind or have low vision.  AT
use the JAB native API and the JAB in turn uses the Java Accessibility
API (JAAPI).  For more information on JAAPI see the javax.accessibility
package.  This is a Windows accessibility solution.

http://cr.openjdk.java.net/~ptbrunet/JDK-8055831/webrev.00/

Pete